896 results about "Exit surface" patented technology

Imaging lens arrangement (100), comprising: an optical plastic element (110), comprising: an incidence surface (111), wherein an imaging light enters the optical plastic element (110) through the incidence surface (111); a reflective surface (112), wherein the imaging light changes direction through the reflective surface (112); an exit surface (113), wherein the imaging light exits the optical plastic element (110) through the exit surface (113); and at least one connecting surface (130) which is used to connect the incident surface (111), the reflecting surface (112) and the exit surface (113), wherein the at least one connecting surface (130) comprises: a sprue (131) which is arranged on the at least one connecting surface (130), and wherein the sprue (131) is raised relative to an adjacent section (134) of the at least one connecting surface (130); a divergent nozzle surface (132) connected to the sprue (131) and the adjacent section (134), wherein the divergent nozzle surface (132) diverges from the sprue (131) and extends in a direction of the adjacent section (134); and a gate remnant (133) which is arranged on a surface of the sprue remnant (131), wherein a contour of the gate remnant (133) is linear and the gate remnant (133) extends over the surface of the sprue remnant (131); wherein, when projected along a direction in a front view of the adjacent section (134) of the at least one connecting surface (130), a projection surface of the divergent nozzle surface (132) is As, a projection surface of the sprue residue (131) is Ag, and the following condition is met: 0.08 ≤ As / Ag ≤ 0.68.

The invention discloses an AR light machine and a near-to-eye display device, and relates to the technical field of AR optics. The illumination light path comprises a collimating lens, a compound eye, a first lens and a diffusion sheet which are tightly arranged in sequence along a light beam emitted by the light source; the imaging light path comprises a balsaming lens group, a polarization splitting prism, a reflector and a second lens in contact with the light-emitting surface of the polarization splitting prism, wherein the balsaming lens group, the polarization splitting prism and the reflector are tightly arranged in sequence in the direction of the light beam reflected by the LCOS. The lenses are tightly arranged, and in the illumination light path, light beams passing through the diffusion sheet sequentially enter a polarization splitting prism and a bonding lens group in the imaging light path, so that multiplexing of the polarization splitting prism and the bonding lens group is realized; in addition, in the imaging light path, through a folding structure of a polarization splitting prism, the size of the AR light machine is reduced; in addition, the LCOS is small in size. In conclusion, the volume of the AR light machine provided by the invention can be 30% of that of a traditional AR light machine, and miniaturization of the AR light machine is realized.

An objective system of a medical scope including an optical filter is disclosed. The optical filter includes a light incident side and a light exit side, a central region around an optical axis, and a peripheral region and is designed as an aperture with a single optical axis for white light and fluorescence light. The optical filter includes a first transmission zone for a transmittance of a first wavelength band and a second transmission zone for a transmittance of a second wavelength band at least partially different from the first wavelength band. At least one of the two transmission zones includes a filter coating. As a result, when both white light and fluorescence light pass the optical filter, a light beam cone of the fluorescence light has a larger diameter than a light beam cone of white light or vice versa.

An optoelectronic device (10) comprises a laser light-emitting component (100) and an optical component (200) with an optical waveguide (201). The laser light-emitting component (100) has a light-exit surface (120) for emitting the laser light and at least one first alignment structure (130) on a first end face (110). The optical component (200) has a light-entry surface (220) on a second end face (210) where the laser light can be coupled into the optical waveguide (201), and at least one second alignment structure (230).The first and second alignment structures (130, 230) are designed to be complementary to each other in order to align the laser light emitting component (100) to the optical component (200) in such a way that the light exit surface (120) and the light entry surface (220) are opposite each other, whereby the laser light is coupled into the optical waveguide (201) in the case of emission of laser light by the laser light emitting component (100).

A light guide includes: a light entrance section which has a light entrance surface to which light is input, reflective surfaces and a light transmitting section, the reflective surfaces reflecting a part of the light input, and the light transmitting section transmitting another part of the light input and reflected light reflected by the reflective surfaces; a light guiding section which has a light exit surface, and guides the reflected light so that it is output from the light exit surface; and a continuous section and a non-continuous section. A large part of the light collected by the light entrance section can be output from the light exit surface, by a part of the light input being reflected by the reflective surfaces and the reflected light entering the light guiding section from the light transmitting section via the continuous section to be guided within the light guiding section.

A semiconductor LED includes p-doped, n-doped, and active layers, and has anode and cathode electrical contacts, a lateral dielectric layer on the side surfaces of the LED, and an electrically conductive bonding layer on the lateral dielectric layer. The bonding layer is electrically coupled to the anode electrical contact and electrically insulated from side surfaces of the active and n-doped layers by the lateral dielectric layer. The LED has a cross-sectional area that increases monotonically with increasing distance from its anode contact surface toward its light-exit surface. Side-surface shape is arranged so that internal reflection within the LED or lateral dielectric layer redirects a portion of light, emitted by the active layer and propagating within the LED outside an escape cone, to propagate toward the exit surface of the n-doped layer within the escape cone.

The invention relates to a laser package comprising a base element having a mounting surface on which at least one semiconductor laser element is arranged to emit light along a first optical axis that runs substantially parallel to the mounting surface. The laser package also comprises an integrally formed deflecting element arranged in the beam path of the at least one semiconductor laser element on the mounting surface and configured to couple the light emitted along the first optical axis and coupled in via a light entry surface of the deflecting element to a second optical axis via a light exit surface of the deflecting element, which is offset substantially parallel to the first optical axis.Furthermore, the laser package comprises an optical arrangement which is arranged downstream of the deflecting element in the beam path of the at least one semiconductor laser element on the arrangement surface. The optical arrangement is configured to collimate light emitted by the at least one semiconductor laser element along at least one direction and / or is configured to homogenize light emitted by the at least one semiconductor laser element along at least one direction.

The utility model discloses an optical module, a vehicle lamp and a vehicle. The optical module comprises a first light guide component and a second light guide component. The first light guide component is provided with a light incident surface and a light emergent surface, and is configured to adjust light rays incident from the light incident surface into parallel light rays and emit the parallel light rays to the light emergent surface; the second light guide part is arranged on the light emitting side of the first light guide part through the mounting part; the light-emitting surface comprises a light-emitting main surface and a diffusion sub-surface, and the diffusion sub-surface is arranged on at least part of the peripheral side of the light-emitting main surface; a reference plane lambda perpendicular to the parallel light rays is used as a projection plane, and the diffusion sub-plane is configured to diffuse the parallel light rays incident to the diffusion sub-plane, so that the area of an irradiation area, on the reference plane lambda, of the light rays emitted from the light emitting surface is larger than the orthographic projection area, on the reference plane lambda, of the light emitting surface. The light-emitting area of the second light guide part is increased through the diffusion effect of the diffusion sub-surface; and the overall lighting uniformity of the second light guide part is improved.

The present application provides an optical folding element, a camera module, and an electronic device. The optical folding element comprises a first surface and a second surface which are arranged opposite to each other, wherein the first surface comprises an incident surface and an exit surface; the optical folding element further comprises a plurality of grooves; openings of the plurality of grooves are all formed on the second surface; and groove surfaces of the grooves can be used for reflecting light. First light enters the optical folding element from the incident surface, is reflected for multiple times in the optical folding element, and then is emitted out from the exit surface; and second light enters the optical folding element from the incident surface and is reflected in toward the incident surface under the action of the groove surfaces of the grooves. The optical folding element of the present application can effectively reduce the effect of stray light, thereby achieving good imaging quality.

The embodiment of the invention discloses an optical lens group, a lens module and electronic equipment, a front optical part is arranged on the front side of a rear prism, and light is guided to a light incident surface through the front optical part. Furthermore, the light can be refracted in sequence on the light emitting surface and the first reflecting surface in the rear prism, so that the folding of the first light path is realized, and the overall size of the optical lens group is reduced. On the other hand, the first reflecting surface is configured to be bent towards the light incident surface, so that the irradiation area is increased. The irradiation area of the light-emitting surface can be increased. And especially under the condition of weak ambient light, the definition of the image quality is effectively improved. In addition, the area of the light-sensitive surface is effectively increased. And meanwhile, by improving the propagation direction of a tail end light path, on the premise that the size is not increased, the use of a photosensitive element with a larger size is supported, and the image quality is greatly improved.

A vehicle lamp includes a first light source configured to emit light in a direction along a vertical direction; a first reflector having a first reflective surface that allows a portion of the light emitted from the first light source to be reflected forward; a second reflector having a pair of second reflective surfaces that allow light traveling without being reflected by the first reflective surface to be reflected leftward and rightward; a third reflector having a pair of third reflective surfaces that allow light reflected by the second reflective surfaces to be reflected forward; and a first lens that allows light reflected by the first reflective surface and light reflected by the pair of third reflective surfaces to exit forward through an exit surface. A maximum length of the first lens in the vertical direction is smaller than a maximum length of the first lens in a left-right direction.

This invention relates to the field of laser special light source technology, and provides a laser-driven white light source device, which includes a laser source, an optical system, a gas-loaded structure, and a high-voltage driving component. The laser source is suitable for providing a laser beam; the optical system is suitable for focusing the laser beam; the gas-loaded structure is located on the side of the optical system away from the laser source, and the center of the gas-loaded structure corresponds to the focusing area of ​​the laser beam; the high-voltage driving component is suitable for igniting plasma within the gas in the gas-loaded structure; wherein, the gas-loaded structure has a gas carrier incident surface and a gas carrier exit surface arranged opposite each other along the propagation path, and the curvature of the gas carrier incident surface and the gas carrier exit surface is constant in the direction perpendicular to the propagation path. This application can reduce the generation of aberrations, thereby reducing the size of the emitting point and resulting in better consistency of the emitting point; at the same time, the uniformity of white light output and the spectral radiance are also better.

To provide a luminaire capable of more efficiently illuminating an object range with uniform brightness.SOLUTION: A lighting fixture 10 includes a light source module 30 having a substrate 32 and a plurality of light sources 31 mounted on the substrate 32, and a light distribution control member 20 for controlling light distribution of illumination light emitted from the plurality of light sources 31. The light distribution control member 20 includes a light emission surface 22, and a plurality of incidence portions 21 provided to face each of the plurality of light sources 31 on a side opposite to the light emission surface 22. At least one of the plurality of incidence portions 21 includes a bottom portion 211 facing one light source 31 of the plurality of light sources 31, and a side wall 212 protruding from an edge of the bottom portion 211 toward the light source module 30. The side wall 212 has an incident surface 2121 on which the illumination light is incident, and a total reflection surface 2122 that totally internally reflects the light incident from the incident surface 2121. The total reflection surface 2122 is a curved surface that is convex toward the light exit surface 22.SELECTED DRAWING: Figure 3

Lens for a vehicle lighting device, wherein the lens is designed to produce a light distribution for zone III of the dipped beam, the lens comprising: a lens body (1) with a light-entry surface and a light-emission surface (14), characterized in that an upper and middle region (11) of the light-entry surface of the lens body (1) in the installed position is a flat surface in the top-bottom direction (Z), while a lower region (12) of the light-entry surface of the lens body (1) in the installed position is a flat surface which is inclined from top to bottom in the installed position against the direction of light emission, wherein a generating structure for zone III of the low beam (13) is provided on or integrally formed with the lower region (12) of the light-entry surface in the installed position, which generating structure for zone III of the low beam (13) comprises several protrusions which serve to continuously and uniformly emit light rays with an illuminance that meets the legal requirements and which project beyond the lower region of the light-entry surface (12),wherein the generation structure for zone III of the dipped beam (13) generates the light distribution for zone III of the dipped beam.

The utility model discloses an optical element and an optical system, the optical element comprises an optical element body, the optical element body comprises a light transmission surface and a structural surface, and the light transmission surface and the structural surface jointly form an outer surface of the optical element body. The light transmission surface is used for transmitting light rays towards a light receiver, the structural surface is provided with a microstructure, and the microstructure is used for preventing the light rays projected to the structural surface from being transmitted towards the light transmission surface. According to the optical element provided by the embodiment of the utility model, the microstructure is arranged on the structural surface, so that stray light in the optical element body can be reduced, and stray light emitted from the emergent surface to the outside of the optical element body can be reduced, thereby improving the light emitting effect of the optical element, and improving the light emitting efficiency of the optical element when the optical element is applied to an optical system. The stray light emitted by the optical element is reduced, so that disordered imaging is not easy to form in the optical system, and the imaging effect of the optical system can be improved.

The invention discloses a design method of a uniform condensing lens with wide angular domain receiving performance, which relates to the technical field of space solar power stations and comprises the following steps: constructing energy equations of each receiving area and a plurality of lens ring teeth corresponding to the receiving area by taking uniform energy distribution on each receiving area as a constraint; wherein the lens ring teeth are located on the emergent surface of the lens, and light enters from the incident surface of the lens and reaches each receiving area after being refracted; determining a lens ring tooth number corresponding to each receiving area according to a preset condensation ratio and an energy equation; analyzing the influence of the inclination angle of the lens ring tooth on the optical characteristics of the lens ring tooth, and obtaining the critical value of the inclination angle of the lens ring tooth and the optimal focal length of the lens; and designing a generatrix of the lens, and constructing a uniform condensing lens function with wide-angle-domain receiving performance so as to realize parameter design of the lens. The problem that the condensation efficiency and the light spot uniformity are suddenly reduced during non-vertical incidence of light can be effectively solved.

An apparatus including: a deflector deflecting a light flux from a light source to scan a surface in a main scanning direction; and an imaging optical system including first and second optical elements, and guiding the light flux deflected by the deflector to the surface. When sagittal shapes of an incident surface and an exit surface of each of the first and second optical elements are represented by the following equations:x=z2 / r′1+(1-(z / r′)2)1 / 2+∑n=18∑m=01⁢6Mm⁢n⁢ym⁢znr′=r⁡(1+∑i=11⁢6Ei⁢yi)in at least one of incident surface or exit surface of first optical element and each of incident surface and exit surface of second optical element, at least one of values of Mmn is not equal to 0 provided that m is not equal to 0, and incident surface and exit surface of second optical element have M01 of the same sign.

The utility model discloses an inner lens of increasing left and right irradiation angle of reversing light, including light source, light source sets up on reversing light circuit board for providing parallel light, and the inner lens sets up at parallel light position, and the emergent surface of inner lens is provided with continuous alternating convex pattern and concave pattern, and parallel light forms the uniform diffusion reversing light through the refraction of convex pattern and concave pattern, the utility model discloses setting convex pattern and concave pattern on the inner lens, and the light of light source forms the parallel light of irradiating towards the inner lens after reflection, and the parallel light forms the concave pattern refraction reversing light, convex pattern refraction reversing light and convex pattern side wall refraction reversing light through the refraction of concave pattern, arc convex pattern and convex pattern side wall respectively, and the concave pattern refraction reversing light, convex pattern refraction reversing light and convex pattern side wall refraction reversing light are accumulated to form the uniform irradiation, and the left and right diffusion angle of reversing light is greater than 50 DEG, and the utility model discloses improving the lighting effect of reversing light.

The application discloses a three-piece Bessel beam shaping system with a diffraction ring, and belongs to the technical field of laser processing, comprising: a beam shaping mirror, a first collimating mirror and a focusing mirror; the incident surface and the exit surface of the beam shaping mirror are annular planes and annular aspheric surfaces respectively, and are used for shaping a collimated Gaussian beam into a point annular beam with energy gradually decreasing from inside to outside; the incident surface and the exit surface of the first collimating mirror are annular aspheric surfaces and annular planes respectively, and are used for collimating the point annular beam; the incident surface of the focusing mirror is a combination of an axicon surface and a spherical surface, and the exit surface is a plane; the focusing mirror is used for focusing the collimated point annular beam into a Bessel beam with a diffraction ring. The application can significantly improve the focal depth of the Bessel beam in laser processing, and can also effectively remove processing materials such as ink. In addition, the focal depth of the Bessel beam in the application is adjustable, and the adjustment mode is more, the flexibility is higher, and is suitable for different laser processing scenes.

The utility model provides a kind of optical path turning element, it is equipped with incident plane, emergent surface, at least one first reflecting surface and at least one second reflecting surface, optical path turning element is equipped with multiple microstructures, multiple microstructures are set to at least one second reflecting surface and / or at least one first reflecting surface, microstructure is arc or broken line shape extension;Wherein, effective light enters optical path turning element by incident plane, after being reflected by at least one first reflecting surface, it is shot to the outside of optical path turning element by emergent surface;After stray light enters optical path turning element by incident plane, at least part stray light is reflected under the action of microstructure along the direction of incident plane, to make at least part stray light be shot to the outside of optical path turning element by incident plane.The optical path turning element can effectively eliminate stray light, improve imaging quality, and be conducive to reducing the volume of optical path turning element.The utility model further provides a kind of camera module and electronic equipment.

The present application provides a backlight unit with excellent uniformity of brightness. The backlight unit of the present application comprises: a light source; a light guide plate disposed opposite the light source and having an end surface on which light from the light source is incident and an exit surface through which the light after being incident is emitted; a reflection plate attached to the back surface side of the light guide plate via a double-sided adhesive film; and a housing that accommodates the light source, the light guide plate, and the reflection plate and has a front surface portion and a back surface portion. The double-sided adhesive film has, in order from the light guide plate side, a first adhesive layer, a low-refractive layer, and a second adhesive layer. The backlight unit is configured in such a manner that light from the light source is not incident between the low-refractive layer and the reflection plate, or in such a manner that light incident from the light source between the low-refractive layer and the reflection plate is not emitted from the exit surface of the light guide plate.

This application discloses an assembly and adjustment device for a pulse broadening unit, comprising: a visible light source device, a pulse broadening unit, a phase delay element, a linear polarizer, and a reticle; the pulse broadening unit includes a beam splitter and a mirror assembly; the output beam from the visible light source device is incident on the beam splitter; the beam splitter splits the received output beam into a first reflected beam and a transmitted beam; the first reflected beam, after passing through a reflective lens assembly, is incident on the exit surface of the beam splitter, and after being reflected by the exit surface, it illuminates the reticle together with the transmitted beam; the linear polarizer is disposed in the optical path from which the transmitted beam exits, and the angle between its transmission direction and the polarization direction of the transmitted beam transmitted from the beam splitter satisfies the following condition: eliminating part of the energy of the transmitted beam; the phase delay element is disposed in the optical path before the first reflected beam is incident on the exit surface of the beam splitter, and is used to rotate the polarization direction of the first reflected beam by the same angle.

The utility model relates to the technical field of illumination, in particular to a lamp strip facilitating light distribution, an optical system and a lamp. The lamp strip comprises a shading shell; a first cavity is defined by the first light-transmitting body and the shading shell, the first light-transmitting body comprises a first incident surface and a first emergent surface which are oppositely arranged, a reflecting surface is arranged between the first incident surface and the first emergent surface, and the first incident surface faces the first cavity; the second light-transmitting body is spaced from and opposite to the first emergent surface; the shading shell, the first light-transmitting body and the second light-transmitting body are integrally formed. According to the lamp strip facilitating light distribution, the shading shell, the first light-transmitting body and the second light-transmitting body are integrally formed, so that the mold cost can be reduced, and assembly simplification and lamp size reduction are facilitated; the second light-transmitting body and the first emergent surface are spaced and opposite, the second light-transmitting body can receive the light rays emitted from the first emergent surface, the light rays can be conveniently adjusted again by changing the second light-transmitting body, specific light distribution is achieved, and use requirements are met.

To provide an interference exposure apparatus capable of achieving a large slant angle. [Solution] An interference exposure apparatus according to one embodiment of the present invention comprises a prism that transmits a first beam and a second beam and has a first incident surface into which the first beam is incident, a second incident surface into which the second beam is incident, and an exit surface that emits the first beam and the second beam; a fluid that fills the space between the exit surface and the object to be irradiated and transmits the first beam and the second beam emitted from the exit surface; and an optical system that splits the light into a first beam and a second beam, causes the first beam to be incident on the first incident surface and the second beam to be incident on the second incident surface, wherein the optical axis of the first beam incident on the exposure surface from the fluid and the optical axis of the second beam incident on the exposure surface from the fluid are asymmetric with respect to the normal of the exposure surface in the irradiation region.

The utility model relates to a light condenser, which is matched with a light source and a light emitting element (1) to form a high beam module, and comprises a light condensing unit and a lower convex structure (4) arranged on the lower side of the light condensing unit, and the lower convex structure (4) comprises a lower convex structure reflecting surface (401) and a lower convex structure light emitting surface (402). Light emitted by the light source (3) is suitable for being converged by the condenser (2) and then emitted by the light emitting element (1) to form a high beam light type, part of the light emitted by the light source (3) enters the condensation unit, is emitted downwards to the reflecting surface (401) of the downward convex structure, is reflected by the reflecting surface (401) of the downward convex structure and then is emitted by the light emitting surface (402) of the downward convex structure, and the emitted light is transmitted to the light emitting element (1). And the light passes through the light emitting element (1) and then is projected upwards to an upper side boundary area of a high beam light pattern. According to the condenser, the irradiation range of the upper side boundary area of the high beam light pattern can be increased, and the driving safety is improved.

A multi-color LED illumination device and specifically a lens comprising a cylindrical opening extending into the lens from a light entry region at which one or more LEDs are configured. A concave spherical surface extends across the entirety of the light exit region of the lens, and a TIR outer surface shaped as a CPC extends between the light entry region and the light exit region. There are various diffusion surfaces placed on the sidewall surface of the cylindrical opening, as well as its upper planar surface and the exit surface of the lens. Lunes can also be configured on the sidewall surfaces of the cylindrical opening. The combination of lunes, diffusion elements, and the overall configuration of the lens provides improved color mixing and output brightness using three interactions in a first portion of light and two interactions in a second portion of light. Those interactions includes two refractions either with an intermediate reflection or not, all of which are necessary to achieve the improved performance of the multi-color LED illumination device and lens hereof.

The present invention relates to an emitter having at least one light source and a lens for shaping a beam for illuminating a target area. According to the invention, the lens has a through opening for allowing passage of an unreflected and undeflected direct light beam, on the input side of which the light source is positioned, wherein an inner circumferential surface enclosing said through opening at least partially forms a light entrance surface of the lens, at which some of the light rays emitted by the light source enter the lens, and are deflected by the lens by way of total internal reflection and are emitted as an indirect light beam from a light exit surface, wherein said inner circumferential surface is contoured in such a way that Fresnel reflections occurring at said inner circumferential surface are emitted through said through opening and illuminate the target area as part of the direct light beam and / or of the indirect light beam.

Described is an optical device including: a printed circuit board; an LED mounted on the printed circuit board; a light guide layer that embeds the LED therein and includes a reflective surface and an exit surface; and a reflective pattern layer formed on the reflective surface of the light guide layer, wherein the reflective surface of the light guide layer includes a curved shape such that light of the LED is entirely internally reflected using the reflective pattern layer and emitted from the exit surface. The optical device implements a stereoscopic light emitting image using the light guide layer including the curved reflective surface that entirely internally reflects LED light in a lamp structure of a vehicle.

To provide a lens mirror array capable of improving optical characteristics while allowing a shading member to be mounted on a prescribed part of a surface thereof.SOLUTION: A lens mirror array 1 includes a plurality of optical elements 90 aligned in a first direction. Each of the plurality of optical elements includes: an incidence plane 2 into which light is incident; a reflection plane 3 extending in a second direction orthogonal to the first direction and configured to reflect the light incident via the incidence plane; a protrusion 6 extending in the second direction and including a reflection plane at an apex in a projection direction; and an emission surface 5 configured to emit the light reflected at the reflection plane. The lens mirror array further includes a comb-shaped groove 7, means for storing a shading ink, and a shading member. The comb-shaped groove includes a plurality of linear grooves disposed between a plurality of protrusions aligned in the first direction of the plurality of optical elements, neighboring at one end in the second direction of the plurality of protrusions and having an end face intersecting the second direction, and is structured by connecting the plurality of linear grooves at another end side in the second direction of the plurality of protrusions.SELECTED DRAWING: Figure 4

The application discloses a projection device and a projection system, the projection device comprises: at least two laser light sources for emitting laser beams of the same color; at least one beam-reducing element located on the light-emitting side of the at least one laser light source, the beam-reducing element comprises an entrance surface and an exit surface, the entrance surface and the exit surface are parallel and have a set thickness, and the entrance surface of the beam-reducing element is arranged at a set angle with the emitted light beam of the corresponding laser light source; and the beam-reducing element is used for refracting the emitted light beam of the corresponding laser light source at least twice, so that the emitted light beam of the corresponding laser light source moves towards the direction of the emitted light beam of the other laser light source, thereby achieving a beam-reducing effect, the structure of the beam-reducing element is simple, the emitted light beam of the adjacent laser light source can be avoided from being shielded, and the compact arrangement of the laser light sources is facilitated.